Susan Huishu Duan, M.D,
Internal Medicine Physician · Los Angeles, CA
Susan Huishu Duan, M.D, is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1275951261, issued on Apr 7, 2014. Check the license (California A156314, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Susan Huishu Duan
- Credential
- M.D,
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A156314 CA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Ucla Medical Plz Ste 490, Los Angeles, CA 90024
- Phone
- (310) 206-6232
- Enumerated
- Apr 7, 2014
- Record last updated
- Jul 8, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (310) 206-8005
- Medicare enrollment
- Enrolled (PECOS I20180815002817); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 2014
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 100 Ucla Medical Plz Ste 490
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Susan Huishu Duan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A156314Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,655 Medicare Part D claims for 155 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 21 claims were for opioids.
Most prescribed
- Atorvastatin Calcium141 claims
- Amlodipine Besylate69 claims
- Levothyroxine Sodium64 claims
- Losartan Potassium60 claims
- Metformin Hcl43 claims
- Gabapentin41 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- The Regents OF The University OF CaliforniaSanta Monica, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Susan Huishu Duan among 17,696 internal medicine physician records in California
Susan Huishu Duan, M.D, is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 74% of them.
- NPI issued2014 · 74% of these records are older, 24% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2014 · median 2004 among the 11,065 with a school on file
- Record last updated2019 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,423 internal medicine physician records list a practice address in Los Angeles
They are 1,423 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Los Angeles → Internal Medicine Physician nationwide →
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- Nancy Greengold, MDLos Angeles, CA 900241033328208
- Sarah Kim, M.D.Los Angeles, CA 900241205028651
- Lisa Kransdorf, MDLos Angeles, CA 900241962675223
- S. Anjani Mattai, MDLos Angeles, CA 900241528030996
Common questions
What is Susan Huishu Duan, M.D,'s NPI number?
Susan Huishu Duan, M.D,'s National Provider Identifier (NPI) is 1275951261, issued on Apr 7, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Susan Huishu Duan, M.D, located?
The NPPES record lists a practice address at 100 Ucla Medical Plz Ste 490, Los Angeles, CA, 90024. Phone: (310) 206-6232. Providers update this record themselves, so call before visiting.
How can I verify Susan Huishu Duan, M.D,'s license?
NPPES lists California license number A156314, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Susan Huishu Duan, M.D, prescribe under Medicare Part D?
In 2024, Susan Huishu Duan, M.D, had 1,655 Medicare Part D claims for 155 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.